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A Train Trip Through Fantasy World in D.C.

WASHINGTON — A new display at the Smithsonian's Arts and Industries Building, on view through March 15, includes two toy electric trains that chug through a fantasy world of live plants and miniatures called Smithsonian Land.

The theme is a whimsical one: With the arrival of locomotives in the countryside, fairies have taken to the hills, leaving behind an intricate imaginary world of miniature houses, trains with clanging bells, bridges, pines and mosses. Open 10 a.m. to 5:30 p.m. daily. Free admission. (202) 357-2700, www.si .edu/ai.